Rescue workers are battling against time to find the remaining survivors within the rubble of a six-storey building that collapsed in Nairobi's Huruma district on 30 April. At least 21 people have been confirmed dead, with an estimated 136 saved from the ruins. Dozens are still listed as missing and emergency services say that the chance of finding more survivors has become unlikely.

The 198-room building had been previously condemned by authorities and there has been no official explanation of why it remained occupied. Kenya's Interior Ministry said that the Huruma building had been earmarked for demolition as it was built too close to the river.

Nairobi building collapse
A general view shows rescue workers searching for residents feared trapped in the rubble in NairobiGregory Olando/Reuters

Like many cities in Africa, the population of Nairobi has risen dramatically over recent years, and is about a third bigger than its population of 3.5 million back in 2011, according to United Nations' (UN) figures. The city's rapid growth has left the government struggling to build homes fast enough.

Kenya's president, Uhuru Kenyatta has since ordered other buildings in the area to be surveyed to ensure they are safe to be lived in.

Nairobi building collapse
A rescue worker wears a mask as he rests during the search for residents feared trapped in the rubble of the collapsed building Thomas Mukoya/Reuters
Nairobi building collapse
A general view shows the Nairobi river flowing dangerously close to the Huruma neighbourhood in NairobiThomas Mukoy/Reuters
Nairobi building collapse
A woman mourns during the search for residents feared trapped in the rubble of the six-storey building that collapsed in NairobiThomas Mukoya/Reuters
Nairobi building collapse
A woman tearfully awaits news as rescue workers search for residents feared trapped in the rubble in NairobiReuters
Nairobi building collapse
Security and rescue personel continue for the third-day with the search of bodies trapped in rubble after a six-storey building collapsed in Huruma, NairobiTony Karumba/AFP
Nairobi building collapse
A woman stands on the balcony of a neighbouring building as she watches rescuers searching for bodies trapped in rubble of the collapsed residential building in Huruma, NairobiTony Karumba/AFP
Nairobi building collapse
Residents of adjacent buildings move out with their belongings in Huruma, NairobiTony Karumba/AFP

The buildings collapse has lead to the evacuation of other neighbouring residents, who fear that this may mean that other buildings are not safe, particularly with the heavy rain.

Rescue workers managed to save an 18-month-old baby named Dealeryn Saisi Wasike from the rubble. Identified by her father, it is expected that she was buried for approximately 80 hours.

"[She] was found in a bucket wrapped in a blanket. She appeared dehydrated, and with no visible physical injuries," the Kenya Red Cross told Reuters. The fate of Dealeryn's mother is still unknown.

The suspected owners of the six-storey building appeared in court on 3 May. Entrepreneurs Samuel Kamau Karanja and brother Henry Muiruri Karanja appeared handcuffed at the Chief Magistrates Court in Milimani, Nairobi. So far, no one has been charged.

Nairobi building collapse
A volunteer drinks tea as he rests during the search for residents feared trapped in the rubble in NairobiThomas Mukoya/Reuters
Nairobi building collapse
A man carries his belongings on a hand cart as he leaves the Huruma neighbourhood during the search for residents in NairobiThomas Mukoya Reuters
Nairobi building collapse
Children look through a grill as rescue workers search for residents feared trapped in the rubble in NairobiThomas Mukoya/Reuters
Nairobi building collapse
A woman leaves the Huruma neighbourhood as rain continues to fallThomas Mukoya/Reuters
Nairobi building collapse
Kenyan entrepreneurs Samuel Kamau Karanja (R) and his brother Henry Muiruri Karanja (L), suspected owners of a six-storey building that collapsed in the Huruma neighbourhood sit in the dock at the Chief Magistrates Court in Milimani, NairobiThomas Mukoya/Reuters
Nairobi building collapse
People carry their belongings as they leave the Huruma neighbourhood in NairobiThomas Mukoya/Reuters
Nairobi building collapse
Kenya Red Cross paramedics attend to a 18-month-old girl rescued from the rubble of a six-storey building that collapsed in NairobiBonny Odhiambo/Kenya Red Cross/Reuters
Nairobi building collapse
A man looks at a policeman as he carries his suitcase to leave the Huruma neighbourhood in NairobiThomas Mukoy/Reuters
Nairobi building collapse
People carry a sofa as they leave the Huruma neighbourhood during the search for residents feared trapped in the rubble of a six-storey building in NairobiThomas Mukoya/Reuters
Nairobi building collapse
Kenyan entrepreneurs Samuel Kamau Karanja (R) and his brother Henry Muiruri Karanja (L), suspected owners of a six-storey building that collapsed hide their faces as they sit in the dock at the Chief Magistrates Court in Milimani, NairobiThomas Mukoya/Reuters
Nairobi building collapse
A Kenyan woman standing in a balcony looks at rescue workers removing debris from the six storey building that collapesd in Huruma, NairobiSimon Maina/AFP
Nairobi building collapse
A woman carries her belongings as she leaves the Huruma neighbourhood in NairobiThomas Mukoya/Reuters